If your doorbell is too loud, inaudible, or just boring, the Swann Wireless DJ Doorbell lets you customize it with any MP3 file. Even better, it rings wirelessly so you can put the receiver in any location you want (up to 330 feet away).

The device works with a doorbell that you can stick on to any doorframe (or wherever—technically it'll stick to your face, too) and a receiver that's actually an MP3 player. The receiver comes with 32 built-in tones, but to add your own you'll need to provide it with an SD/SDHC card. Although I'm not sure why you'd want to store up to 32GB of music in your doorbell, you can! If 600 songs will do, you can get a 2GB SD card for under a dollar. You really only need a single tone to customize, but if you want a little variety you've got the option. Both the doorbell and the receive run off AA batteries, so you'll need to change them out once in awhile. It also won't wire into your existing doorbell system, so it's clearly for people who want a no-hassle setup. If you've got a problematic doorbell or just want one you can customize, check it out.